Valve for steam-traps and the like.



Patented N0). 15, 1910.

APPLICATION FILED 00T.25,1905.

22 fv/vfu.

ARTHUR E. DURAM,

OF CHICAGO,

ILLINOIS.

VALVE FOR STEAM-TRAPS AND THE LIKE.

To all whom it may concern:

Be it known that I, ARTHUR E. DURAM, a citizen of the United States,residing at Chicago, county of Cook, and State of Illinois, haveinvented certain new and useful Improvements in Valves for Steam-Trapsand the Like, of which the following is a description.

My invention relates to valve mechanism, especially applicable for usein steam traps by which accumulations of water or other liquids, whetherarising from the condensation of steam or otherwise, will be discharged,and in the latter use, without the escape of steam.

The object of my improvement is to produce a simple, effective andconvenient device for the purpose stated.

To this end my invention consists in the novel construction, arrangementand combination of parts shown and described and more particularlypointed out in the claims.

In the drawings wherein like reference characters indicate like orcorresponding parts, Figure 1 is a vertical sectional view of myinvention on line 1-1 of Fig. 2. Fig. 2 is a transverse section on line22 of Fig. 1. Fig. 8 is a transverse detail section through the valvestem above one of the valves, and Fig. 4 is a sectional view of thevalve chamber and valves showing a slight modification.

In the drawings for the purpose of illustration, my valve mechanism isshown applied to a simple form of steam trap in which, 1 represents asuitable base preferably provided with a dome shaped cap 2, the twobeing constructed to be suitably secured together to form the completeshell or casing. In the form shown in the drawings, this is accomplishedby providing the base 1 with a flange 3 and the cap '2 with acooperating flange 4 and securing them together with suitable bolts 5 orequivalent means in the usual manner. An inlet 6 and an outlet 7 areprovided preferably located in the base 1. By this means the cap 2 maybe conveniently removed without the necessity of interfering with thepipe connections. In the preferred construction the outlet is connectedby a pipe 8 or equivalent means with a substantially centrallypositioned valve chamber 9, provided with valve seats 10 and 11 one orboth of which are removable and adjustable in their positions. The valveseats register vertically with one Specification of Letters Patent.

Application filed October 25, 1905.

Patented Nov. 15, 1910.

Serial No. 284,343.

another and are screw-threaded to engage similar screw threaded openingsin the chamber.

WVithin the dome 2 is a float 12, provided with a depending valve stem18, carrying valves 14 and 15 cooperating with the seats 10 and 11. Thevalves may be of any preferred form for the purpose. As shown, thevalves are each tapered downward affording means for adjustment to theseats to compensate for the wear upon the parts. It is important thatthe valve seats shall be adjustable in their connection with the valvechamber. I also prefer to make the connection between the valves and thestem in such a manner as to permit of the independent adjustment of thevalves thereon. The screw threaded connection between the valve seatsand the chamber 9 answers this purpose, and if the threaded port-ions ofthe valve seats are made of sufficient length affords all the adjustmentrequired at this point. The stem 13 is also threaded as shown, toreceive the threaded valves 14: and 15 and provide for adjusting theirposition. Suitable means are also provided for preventing the accidentaldisplacement of the valves when they are adjusted.

As shown, each valve is provided with a neck or shank having alongitudinal groove arranged to divide the neck into two parts, eachwith suitable ears or lugs 17 thereon, provided with clamping bolts 16for drawing the parts together and securely clamping the stem betweenthem. I prefer to make the opening in the seat 10 slightly larger thanthe valve 15, so that the latter may readily pass through the seatwhereby upon removing the cap the float and valves may be readilyremoved without interfering with the connection or the adjustment of theparts. The dome and float are so proportioned that the latter iseffectually guided in its operation and the accidental displacement ofthe valves with the valve chamber is prevented, insuring the perfectoperation of the device.

As described the valves are substantially balanced and are effectivelyoperated by a float of slight buoyancy regardless of the pressure in thedevice.

The operation is obvious. The device is compact and very effective inits operation, and exceedingly convenient in handling.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent is 1. In a device of the kind described, avalve chamber provided with a-lined openings in its top and bottom, andvalve seats adjustably mounted in said openings, in combination with avalve stem associated with said chamber, a valve for each valve seatmounted upon said stem, each independently adjustable thereon andadapted to cooperate with said seats to control communication throughsaid chamber, and means carried by each of said valves arranged tocooperate with said stem to lock the valve in its adjusted position uponsaid stem.

2. The combination with a valve chamber, of a screw-threaded valve stemassociated With said chamber, a valve engaging the threaded portion ofsaid stem and adjustable thereon, said valve cooperating with saidchamber to control communlcation therethrough, said valve also having asplit neck surroundin said stem, and means for clamping the split neckof the valve into engagement with the stem to lock the valve in adjustedposition upon the stem.

3. The combination with a valve chamber having openings in its top andbottom and arranged in alinement with each other, of valve seatsarranged in said openings, a screw-threaded valve stem associated withsaid chamber, valves arranged upon the threaded portion of said stem andadjustable thereon, said valves cooperating with said seats to controlcommunication through said chamber, said valves also having split neckssurrounding said stem, and means for clamping the split necks of thevalve into engagement with the stem to lock the valves in adjustedposition upon the stem.

4. In a device of the kind described, a valve chamber provided withalined openings in its top and bottom, and valve seats adjustablymounted in said openings, in combination with a screw threaded valvestem associated with said chamber, valves arranged upon the threadedportion of said stem and adjustable thereon, said valves cooperatingwith said seats to control communication through said chamber, saidvalves also having split necks surrounding said stem, and means forclamping the split necks of the valves into engagement with the stem tolock the valves in adjusted position upon the stem.

In testimony whereof, I have hereunto signed my name in the presence oftwo subscribing witnesses.

ARTHUR E. DURAM.

Witnesses:

ROY W. HILL, CHARLES I. COBB.

